...[Chris] Brown's problems may stem from a diagnosis of mental illness. The singer suffers from bipolar II disorder, post-traumatic stress disorder, and severe insomnia.
Read more: http://www.nydailynews.com/entertainment/gossip/chris-brown-ordered-back-rehab-months-article-1.1707187#ixzz2uqSZt1Qc
To those who make this misconnection: Stop it. Bipolar disorder does not cause a sufferer to be violent. Read the article I wrote on this topic a few years ago when a man later described as having this disorder committed acts of violence at the Pentagon.: